<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Read TXT by Columns</title>
    <style>
        html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}
 
body {
  position: fixed; /* 全屏 */
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: auto; /* 滚动条 */
}
        .map {
            height: 100%;
        }
    </style>

</head>

<body>

    <div id="map" class="map"></div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js"></script>
    <script src="./script/ol6.15.1/build/ol.js"></script>
    <!-- <script src="./script/ol6.15.1/css/ol.css"></script> -->
    <script src="./script/script.js"></script>
    <link rel="stylesheet" href="./script/ol6.15.1/css/ol.css">
    </link>
</body>

</html>